Lastest UnityPlayer.dll WinXP compatible is the v2017.2.0.56737 :(
Anyway i noticed that all new games compiled without adding UnityPlayer.dll works on WinXP.
A downloadable game for Windows
Download is at the bottom of the page.
Inspired by Mario Kart, Rocket league, and Sonic All Star racing, the aim of FlashDrive is to deliver a kart-racer feel with power-ups, drift, and boost while letting the player choose and customize their vehicle.
For more info check out our website: http://flashdrivegame.com/